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	Provedor de dados CIGR Journal (2) Autor Katarzyna Maslak; Swedish University of Agricultural Sciences, Dept. of Biosystems and Technology, Alnarp (1) Maslak, Katarzyna (1) Nimmermark, Sven (1) Sven Nimmermark; Swedish University of Agricultural Sciences, Dept. of Biosystems and Technology, Alnarp (1) Palavra-chave Agricultural Engineering Thermal energy use (2) Greenhouses (2) Ornamental plants (2) Tomatoes (2) Wind speed (2) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2014 (2) País China (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Thermal energy use in three Swedish greenhouses – the outdoor temperature-dependent variation and the influence of wind speed under no-sunlight conditions CIGR Journal Katarzyna Maslak; Swedish University of Agricultural Sciences, Dept. of Biosystems and Technology, Alnarp; Sven Nimmermark; Swedish University of Agricultural Sciences, Dept. of Biosystems and Technology, Alnarp. Thermal energy is used in greenhouses for the temperature and humidity control.  In the North of Europe, energy expenditures have a significant share in the total greenhouse production cost.  A study was performed to quantify and analyze the use of thermal energy in three Swedish commercial greenhouses (two with tomatoes and one with ornamental plants), to test the hypothesis that substantial amounts of heat are used at higher outdoor temperatures, and to investigate the influence of the wind speed on the energy use under no-sunlight conditions.  Hourly climate data were registered by means of Priva control systems.  The use of thermal energy was computed based on the readings from the flowmeters and the temperature of the inlet/outlet water to/from the... Palavras-chave: Agricultural Engineering Thermal energy use; Greenhouses; Tomatoes; Ornamental plants; Wind speed. Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2923 Thermal energy use in three Swedish greenhouses – the outdoor temperature-dependent variation and the influence of wind speed under no-sunlight conditions CIGR Journal Maslak, Katarzyna; Nimmermark, Sven. Thermal energy is used in greenhouses for the temperature and humidity control.  In the North of Europe, energy expenditures have a significant share in the total greenhouse production cost.  A study was performed to quantify and analyze the use of thermal energy in three Swedish commercial greenhouses (two with tomatoes and one with ornamental plants), to test the hypothesis that substantial amounts of heat are used at higher outdoor temperatures, and to investigate the influence of the wind speed on the energy use under no-sunlight conditions.  Hourly climate data were registered by means of Priva control systems.  The use of thermal energy was computed based on the readings from the flowmeters and the temperature of the inlet/outlet water to/from the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering Thermal energy use; Greenhouses; Tomatoes; Ornamental plants; Wind speed. Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2923 Registros recuperados: 2 Primeira ... 1 ... Última

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